Madam Siti bought the same lengths of red and yellow ribbons. After she used 836 cm of the red ribbon, the length of the yellow ribbon was 5 times the length of

Madam Siti bought the same lengths of red and yellow ribbons. After she used 836 cm of the red ribbon, the length of the yellow ribbon was 5 times the length of the remaining red ribbon. What was the original total length of the two ribbons?......... cm